Container



Aug. 1, 1944.

M. N. LEBEDEFF CONTAINER Filed Aug. .1.4, 1942 3 Sheets-Sheet 1 Aug. l,1944. M. N. LEBEDEFF 2,354,691

CONTAINER 4 Filed Aug. 14, 19A-12 SSheets-Sheet 2 ,75 jg 77 J5 (j 1162JJ@ 111 Aug- 1, 1944. M. N. LEBEDEFF 2,354,691

' CONTAINER s Filed Aug. 14, 1942 s sheets-sneu 5 Patented Aug. 1, 1944UNITED STATES PATENT OFFICE CONTAINER Michael N. Lebedeil, Chicago,Ill., assignor to Chicago Bridge & Iron Company, a corporation ofIllinois Application August 14, 1942, Serial No. 454,795

(Cl. 22o-3) 5 Claims;

Vresist external pressure when the tank is located underground. The roofand lbottom are made of spherical segments, upwardly vbulging for theroof and downwardly bulging for the bottom, although they could be justthe reverse. The spherical segments intersect on six vertical planesforming hexagons in horizontal projection, except at the periphery wherethey are broken or incomplete where they join the cylinder. Verti'- calstructural members, capable of acting both in tension and compression,connect the roof and bottom systems of hexagons. These connections maybe at the corners where three hexagons intersect or they may be on theline of intersection. In the vertical planes of intersection of the roofand bottom spherical segments are vertical plates connecting the cornersof the hexagon systems.

Other features and advantages of my invention will appear more fully asI proceed with my n specification.

In those forms of device embodying the features of my invention shown inthe accompanyl a cylindrical sneu lo closed at the top by a roof made ofspherical segments II bulging upwardly. The lower end is closed by abottom made of spherical segments I2 bulging downwardly.

The cylindrical shell I0 is here shown as reinforced by the internalhorizontal angle irons I3 which are particularly desirable to brace thetank against external pressure in the event that it is used underground.f

The lines of intersection Il of the spherical segments of the roof formhexagons. (See Fig.

the spherical segments of the bottom form hexagons.

In the vertical planes o1' intersection of the roof and bottom sphericalsegments are vertical plates I6 (at the top), and I1 (at the bottom).

.connecting the corners of the hexagon systems.

Each plate has a curved edge on the junction arc of adjoining sphericalsegments. The plates at the top are extended downwardly somewhat andthose at the bottom are extended upwardly somewhat so that the straightedges I6a and IIa will lie some distance from the plane of the cornersI8 (at the top) and I9 (at the bottom).

20, 20 indicate vertical braces adapted to take both tension andcompression strains. 'I'hese connect the corners of the roof and bottomsystems of hexagons. In the form of device shown in Figs. 1 to 4. theends of these members are joined to the vertical edges of the plates I8at the top and the plates I'I at the bottom. It will be seen that thebraces 20, therefore, have their upper and lower ends each joined to theedges of three of the vertical plates I6 or I1. It is to be understoodthat all joints and connections are made by welding, or other suitablemeans.

The form of device shown in Figs. 5 and 6 is generally the same,corresponding parts being indicated by corresponding numerals augmentedby |00. The plates IIB andIIl, corresponding to the plates I6 and I1,however, are made somewhat narrower, the long straight edges thereoflyin'g substantially in the plane of the corners II8 at the top and IIBat the bottom. In the 1.) Similarly, the lines of :Intersection- I5 of55 form of device shown in Figs. 5 and 6 the angle iron braces |20 aresubstituted for the posts 20. They join opposite plates IIS and IIIsubstantially at their mid points and are adapted to take both tensionand compression. Withthe braces moved from the corners to the centers ofthe plates, the lower edges ofthe plates are somewhat extended so thatthey will join as indi- -cated by II8a at the top and similarly at thebottom The form of device shown in Fig. 7 resembles that shown in Figs.1 to 4 except that the spherical segments of the top and the bottombulgeinwardly instead of outwardly. In this gure corresponding parts areindicated by corresponding numerals augmented by 200.

The foregoing detailed description has been' given for clearness ofunderstanding only, and

no unnecessary limitations should be understood therefrom.

What I claim as new and desire to secure by Letters Patent is:

1. A sheet metal pressure container, including: a cylindrical shellcircular in cross section; a closure for one end of the shell formedsubstantially entirely of a plurality of intersecting nodular sphericalsegments, each of said segments having a radius of curvature markedlyless than that of the cylinder, the outer of said segments intersectingwith lthe cylinder wall throughout its periphery to form an end edge ofa series of scallops; and a closure for the other end of the shell.

2. A sheet metal pressure container, including: a cylindrical shellcircular in cross section; a top for the shell formed substantiallyentirely of a plurality of intersecting nodular spherical segments, eachof said segments having a radius of curvature markedly less than that ofthe cylinder, the outer of said segments intersecting with the cylinderwall throughout its periphery to forni an end edge of a series ofscallops; a bottom for the shell formed of a plurality of intersectingnodular spherical segments, each of said segments having a radius ofcurvature markedly less than that of the cylinder, the outer of saidsegments intersecting With the cylinder wall throughout its periphery toform an end edge of a series of scallops; and vertical braces joiningthe top and bottom.

3. A sheet metal pressure container, including: a cylindrical shellcircular in cross section; a top for the shell formed substantiallyentirely of a plurality of intersecting nodular spherical segments, eachof said segments'having a radius of curvature markedly less than that ofthe cylinder, the outer of said segments intersecting with the cylinderwall throughout its periphery tol form an end edge of a series ofscallops; a bottom for the shell formed of a plurality of intersectingnodular spherical segments, each of said segments having a radius ofcurvature markedly less than that of the cylnder, the outer of saidsegments intersecting with the cylinder wall throughout its periphery toform anfend edge of a series of scallops; vertical plates joined to thelines of intersection of the spherical segments o! the top and bottom;and vertical braces joining said plates.

4. A sheet metal pressure container, including: a cylindrical shellcircular in cross section; a top for the shell formed substantiallyentirely of a plurality of intersecting nodular spherical segments, eachof said segments having a radius of curvature markedly less than that ofthe cylinder, the outer of said segments intersecting with the cylinderwall throughout its periphery to form an end edge of a series ofscallops; a bottom for the shell formed of a plurality of intersectingnodular spherical segments, each of said segments having a radius ofcurvature markedly less than that of the cylinder, the outer of saidsegments intersecting with the cylinder wall throughout its periphery toform an end edge of a series or scallops; vertical plates joined to thelines of inter-`- section of the spherical segments of the top andbottom; and vertical braces joining said plates, the ends of said bracesbeing attached to the ends of said plates.

5. 4A sheet metal pressure container, including: a cylindrical shellcircular in cross sectioma top for the shell formed substantiallyentirely of a plurality of intersectingI nodular spherical segments,each o! said segments having a radius of curvature markedly less thanthat of the cylinder, the outer of said segments intersecting with thecylinder wall throughout its periphery to form an end edge of .a seriesof scallops; a bottom for the shell formed of a plurality ofintersecting nodular spherical segments, each of said segments having aradius of curvature markedly less than that of the cylinder, the outerof said segments intersecting with the cylinder wall throughout itsperiphery to forman end edge of a series of scallops; vertical platesjoined to the lines of intersection oi the spherical segments of the topand bottom; and vertical braces joining said plates, the ends of saidbraces being attached to the centers of said plates.

MICHAEL N. LEBEDEFF.

